artgod...@gmail.com said: > I'm not after quality - I do have an application in mind but it doesn't need > to compete with mass production. Just wondering if it's feasible to make > something crude that will resonate.
Are you doing this for fun or ??? Feasible? Sure. Cheaper? That depends. The cost difference between a complete oscillator package and a simple crystal is tiny. The osc is often cheaper if you include board space or engineering time. Is your background digital or analog? Do you want a sine wave or a clock? My background is primarily digital. If the chip you are using has 2 pins setup to drive a crystal, you can probably get it to run reliably by following the data sheet and/or app notes. The usual recipe is 2 tiny caps and a big resistor. (big in resistance, not physically big) An advantage of using a crystal with the on-chip amplifier that I didn't mention last time is that you save the osc power if you power down that corner of the chip. If you want a sine wave, you are out of my comfort zone. I'd probably look in ham radio literature. They make logic chips like a 74HCU04, U for unbuffered. One of their uses is for making oscillators. I've never done it. Try google. -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
